/Engine/Source/Runtime/SlateCore/Public/Debugging/SlateDebugging.h
FSlateDebuggingInvalidateArgs ( const [SWidget](API\Runtime\SlateCore\Widgets\SWidget) * WidgetInvalidated, const [SWidget](API\Runtime\SlateCore\Widgets\SWidget) * WidgetInvalidateInvestigator, EInvalidateWidgetReason InvalidateReason )